Results 231 to 240 of about 279,783 (265)
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Bounded phase phenomena in the optically injected laser
Physical Review E, 2012Two routes to phase-locking in the optically injected laser system are investigated both involving limit cycles where the phase of the slave laser is unlocked but is nevertheless bounded. We use an experimental phase-resolving technique to unambiguously demonstrate the phenomenon via explicit phasors for the slave laser electric field.
B, Kelleher +4 more
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Optic Neuropathy Following Retrobulbar Injection: A Review
Seminars in Ophthalmology, 2014A retrobulbar block is a regional anesthetic nerve block in the retrobulbar space. Optic neuropathy following retrobulbar injection is a well-recognized and rare complication of the procedure with an unknown incidence. This article reviews the relevant literature regarding vision loss following this procedure. Mechanisms of injury to the optic nerve as
Andrew, Gross, Dean M, Cestari
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Optical feedback effects in cw injection lasers
Applied Optics, 1978A laser diode can simultaneously function as a light source and detector of its own radiation. The addition of a reflecting surface external to the laser produces changes in the laser output power, the current at constant voltage, and the voltage drop across the laser at constant current.
W J, Burke, M, Ettenberg, H, Kressel
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Optical spin injection in CuGaSe2∕GaAs films
Applied Physics Letters, 2006We have investigated polarization-resolved photoluminescence in epitaxially grown CuGaSe2∕GaAs(001) films. Spin-polarized excitons are optically excited both below and above the characteristic crystal field splitting of the chalcopyrite. At low temperatures, a large exciton spin polarization of 35% is measured under resonant pumping but this is reduced
Itskos, Grigorios +9 more
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Practical Optical Fault Injection on Secure Microcontrollers
2011 Workshop on Fault Diagnosis and Tolerance in Cryptography, 2011In this paper we detail the latest developments regarding optical fault injection on secure micro controllers. On these targets, a combination of countermeasures makes fault injection less than trivial. We develop fault injection methods to show experimentally that protected smart cards are still vulnerable.
Jasper G. J. van Woudenberg +2 more
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Frequency Entrainment in Optically Injected Semiconductor Lasers
Physical Review Letters, 1997We theoretically predict and experimentally demonstrate the phenomenon of frequency entrainment in optically injected semiconductor lasers. The laser exhibits nonlinear subharmonic and ultraharmonic resonances for appropriate values of its frequency detuning from the externally injected signal.
Varangis, Petros +4 more
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Injection Molding Of Optical Components
SPIE Proceedings, 1988Injection molding of optical components on a production basis began in 1980. Development took place from the mid to late seventies with the potentially high volume defense contracts candidates for injection molding. Plastic optics are lower cost and lighter weight than optical glass.
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Broadband chaos generation in VCSELs with intensity-modulated optical injection
Optics and Laser Technology, 2023Pei Zhou, Nianqiang Li
exaly